/**************************************************************************
- * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
- * *
- * Author: The ALICE Off-line Project. *
- * Contributors are mentioned in the code where appropriate. *
- * *
- * Permission to use, copy, modify and distribute this software and its *
- * documentation strictly for non-commercial purposes is hereby granted *
- * without fee, provided that the above copyright notice appears in all *
- * copies and that both the copyright notice and this permission notice *
- * appear in the supporting documentation. The authors make no claims *
- * about the suitability of this software for any purpose. It is *
- * provided "as is" without express or implied warranty. *
- **************************************************************************/
-
-/*
-$Log$
-Revision 1.3 2000/10/15 23:40:01 cblume
-Remove AliTRDconst
-
-Revision 1.2 2000/10/06 16:49:46 cblume
-Made Getters const
-
-Revision 1.1.2.2 2000/10/04 16:34:58 cblume
-Replace include files by forward declarations
-
-Revision 1.1.2.1 2000/09/22 14:47:52 cblume
-Add the tracking code
-
-*/
-
-#include <TObject.h>
-
-#include "AliRun.h"
-
-#include "AliTRD.h"
-#include "AliTRDgeometry.h"
-#include "AliTRDcluster.h"
-#include "AliTRDtimeBin.h"
-#include "AliTRDtrackingSector.h"
-
-ClassImp(AliTRDtrackingSector)
-
-//_______________________________________________________
-
-AliTRDtrackingSector::~AliTRDtrackingSector()
+* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+* *
+* Author: The ALICE Off-line Project. *
+* Contributors are mentioned in the code where appropriate. *
+* *
+* Permission to use, copy, modify and distribute this software and its *
+* documentation strictly for non-commercial purposes is hereby granted *
+* without fee, provided that the above copyright notice appears in all *
+* copies and that both the copyright notice and this permission notice *
+* appear in the supporting documentation. The authors make no claims *
+* about the suitability of this software for any purpose. It is *
+* provided "as is" without express or implied warranty. *
+**************************************************************************/
+
+/* $Id: AliTRDtrackingSector.cxx 23810 2008-02-08 09:00:27Z hristov $ */
+
+///////////////////////////////////////////////////////////////////////////////
+// //
+// Tracking data container for one sector //
+// //
+// Authors: //
+// Alex Bercuci <A.Bercuci@gsi.de> //
+// Markus Fasel <M.Fasel@gsi.de> //
+// //
+///////////////////////////////////////////////////////////////////////////////
+
+#include "AliTRDReconstructor.h"
+#include "AliTRDtrackingSector.h"
+#include "AliTRDtrackingChamber.h"
+
+
+ClassImp(AliTRDtrackingSector)
+
+//_____________________________________________________________________________
+AliTRDtrackingSector::AliTRDtrackingSector()
+ :fSector(-1)
+ ,fN(0)
+ ,fGeom(NULL)
{
- //
- // Destructor
- //
-
- delete[] fTimeBin;
-
+ // Default constructor
+
+ memset(fChamber, 0, AliTRDgeometry::kNdets*sizeof(AliTRDtrackingChamber*));
+ memset(fStack, 0, AliTRDgeometry::kNlayer*sizeof(AliTRDtrackingChamber*));
+ memset(fIndex, -1, AliTRDgeometry::kNdets*sizeof(Char_t));
+ memset(fX0, 0, AliTRDgeometry::kNlayer*sizeof(Float_t));
}
-//_______________________________________________________
-AliTRDtimeBin &AliTRDtrackingSector::operator[](Int_t i)
+//_____________________________________________________________________________
+AliTRDtrackingSector::AliTRDtrackingSector(AliTRDgeometry *geo, Int_t gs)
+ :fSector(gs)
+ ,fN(0)
+ ,fGeom(geo)
{
//
- // Index operator
+ // AliTRDtrackingSector Constructor
//
- return *(fTimeBin+i);
-
+ memset(fChamber, 0, AliTRDgeometry::kNdets*sizeof(AliTRDtrackingChamber*));
+ memset(fStack, 0, AliTRDgeometry::kNlayer*sizeof(AliTRDtrackingChamber*));
+ memset(fIndex, -1, AliTRDgeometry::kNdets*sizeof(Char_t));
+ memset(fX0, 0, AliTRDgeometry::kNlayer*sizeof(Float_t));
}
-//_______________________________________________________
-
-void AliTRDtrackingSector::SetUp()
-{
-
- AliTRD *TRD = (AliTRD*) gAlice->GetDetector("TRD");
- fGeom = TRD->GetGeometry();
-
- fTimeBinSize = fGeom->GetTimeBinSize();
-
- fN = AliTRDgeometry::Nplan() * (Int_t(AliTRDgeometry::DrThick()
- /fTimeBinSize) + 1);
-
- fTimeBin = new AliTRDtimeBin[fN];
-
-}
-
-//______________________________________________________
-
-Double_t AliTRDtrackingSector::GetX(Int_t l) const
-{
- if( (l<0) || (l>fN-1)) {
- fprintf(stderr,"AliTRDtrackingSector::GetX: TimeBin index is out of range !\n");
- return -99999.;
+
+//_____________________________________________________________________________
+void AliTRDtrackingSector::Init(const AliTRDReconstructor *rec)
+{
+// Steer building of tracking chambers and build tracking sector.
+// Propagate radial position information (calibration/alignment aware) from chambers to sector level
+//
+
+ AliTRDchamberTimeBin *tb = NULL;
+ AliTRDtrackingChamber **tc = &fChamber[0];
+ for(Int_t ic = 0; (ic<AliTRDgeometry::kNdets) && (*tc); ic++, tc++){
+ for(Int_t itb=0; itb<AliTRDseedV1::kNtb; itb++){
+ if(!(tb = (*tc)->GetTB(itb))) continue;
+ tb->SetReconstructor(rec);
+ }
+ (*tc)->Build(fGeom, rec->IsHLT());
}
- else {
- Int_t tb_per_plane = fN/AliTRDgeometry::Nplan();
- Int_t plane = l/tb_per_plane;
- Int_t time_slice = l%(Int_t(AliTRDgeometry::DrThick()
- /fTimeBinSize) + 1);
-
- Float_t t0 = fGeom->GetTime0(plane);
- Double_t x = t0 + time_slice * fTimeBinSize;
-
- // cerr<<"plane, tb, x = "<<plane<<","<<time_slice<<","<<x<<endl;
-
- return x;
+ Int_t nl;
+ for(int il=0; il<AliTRDgeometry::kNlayer; il++){
+ fX0[il] = 0.; nl = 0;
+ for(int is=0; is<AliTRDgeometry::kNstack; is++){
+ Int_t idx = is*AliTRDgeometry::kNlayer + il;
+ if(fIndex[idx]<0) continue;
+ fX0[il] += GetChamber(fIndex[idx])->GetX();
+ nl++;
+ }
+ if(!nl){
+ //printf("Could not estimate radial position of plane %d in sector %d.\n", ip, fSector);
+ continue;
+ }
+ fX0[il] /= Float_t(nl);
}
}
-//______________________________________________________
-Double_t AliTRDtrackingSector::GetMaxY(Int_t l) const
-{
- if((l<(fN-1)) && (l>-1)) {
- Int_t tb_per_plane = fN/AliTRDgeometry::Nplan();
- Int_t plane = l/tb_per_plane;
- return fGeom->GetChamberWidth(plane);
- }
- else {
- fprintf(stderr,
- "AliTRDtrackingSector::GetMaxY: TimeBin index is out of range !\n");
- if(l<0) return fGeom->GetChamberWidth(0);
- else return fGeom->GetChamberWidth(AliTRDgeometry::Nplan()-1);
- }
+//_____________________________________________________________________________
+void AliTRDtrackingSector::Clear(const Option_t *opt)
+{
+// Reset counters and steer chamber clear
+
+ AliTRDtrackingChamber **tc = &fChamber[0];
+ for(Int_t ich=0; ich<fN; ich++, tc++){
+ (*tc)->Clear(opt);
+ delete (*tc); (*tc) = NULL; // I would avoid
+ }
+ memset(fIndex, -1, AliTRDgeometry::kNdets*sizeof(Char_t));
+ fN = 0;
}
-//______________________________________________________
-
-Int_t AliTRDtrackingSector::GetTimeBinNumber(Double_t x) const
+//_____________________________________________________________________________
+AliTRDtrackingChamber* AliTRDtrackingSector::GetChamber(Int_t stack, Int_t layer, Bool_t build)
{
- //Float_t r_out = fGeom->GetTime0(AliTRDgeometry::Nplan()-1)
- // + AliTRDgeometry::DrThick();
- // Changed to new time0 (CBL)
- Float_t r_out = fGeom->GetTime0(AliTRDgeometry::Nplan()-1);
- Float_t r_in = fGeom->GetTime0(0);
- // cerr<<"GetTimeBinNumber: r_in,r_out = "<<r_in<<","<<r_out<<endl;
-
- if(x >= r_out) return fN-1;
- if(x <= r_in) return 0;
-
- Float_t gap = fGeom->GetTime0(1) - fGeom->GetTime0(0);
- // cerr<<"GetTimeBinNumber: gap = "<<gap<<endl;
-
- Int_t plane = Int_t((x - r_in + fTimeBinSize/2)/gap);
- // cerr<<"GetTimeBinNumber: plane="<<plane<<endl;
-
- Int_t local_tb = Int_t((x-fGeom->GetTime0(plane))/fTimeBinSize + 0.5);
- // cerr<<"GetTimeBinNumber: local_tb="<<local_tb<<endl;
-
- Int_t time_bin = plane * (Int_t(AliTRDgeometry::DrThick()
- /fTimeBinSize) + 1) + local_tb;
- // cerr<<"GetTimeBinNumber: time_bin = "<<time_bin<<endl;
+// Return chamber at position (stack, plane) in current
+// sector or build a new one if it is not already created
-
- return time_bin;
+ Int_t ch = stack*AliTRDgeometry::kNlayer + layer;
+ if(fIndex[ch] >= 0) return fChamber[Int_t(fIndex[ch])];
+ else if(!build) return NULL;
+
+ // CHAMBER HAS TO BE BUILD
+ Int_t rch = ch;do rch--; while(rch>=0 && fIndex[rch]<0);
+ fIndex[ch] = rch >=0 ? fIndex[rch]+1 : 0;
+ fN++;
+
+ memmove(&fChamber[Int_t(fIndex[ch])+1], &fChamber[Int_t(fIndex[ch])], (AliTRDgeometry::kNdets-fIndex[ch]-1)*sizeof(void*));
+ for(Int_t ic = ch+1; ic<AliTRDgeometry::kNdets; ic++) fIndex[ic] += fIndex[ic] >= 0 ? 1 : 0;
+
+ AliTRDtrackingChamber *chmb = fChamber[Int_t(fIndex[ch])] = new AliTRDtrackingChamber();
+ chmb->SetDetector(AliTRDgeometry::GetDetector(layer, stack, fSector));
+ return chmb;
}
-//______________________________________________________
+//_____________________________________________________________________________
+AliTRDtrackingChamber** AliTRDtrackingSector::GetStack(Int_t stack)
+{
+// Return chamber at position (stack, plane) in current
+// sector or build a new one if it is not already created
+
+ if(stack<0 || stack>=AliTRDgeometry::kNstack) return NULL;
+
+ Int_t ich, n = 0;
+ for(int il=0; il<AliTRDgeometry::kNlayer; il++){
+ ich = stack*AliTRDgeometry::kNlayer + il;
+ if(fIndex[ich] < 0) fStack[il] = NULL;
+ else{
+ fStack[il] = fChamber[Int_t(fIndex[ich])];
+ n++;
+ }
+ }
+
+ return n ? &fStack[0] : NULL;
+}
-Int_t AliTRDtrackingSector::GetTimeBin(Int_t det, Int_t local_tb) const
+//_____________________________________________________________________________
+void AliTRDtrackingSector::Print(Option_t *opt) const
{
- Int_t plane = fGeom->GetPlane(det);
+// Dump info about this tracking sector and the tracking chamber within
+//
+
+ printf("\n\tSector[%2d]\n", fSector);
+ for(int il=0; il<AliTRDgeometry::kNlayer; il++){
+ for(int is =0; is<AliTRDgeometry::kNstack; is++){
+ Int_t ch = is*AliTRDgeometry::kNlayer + il;
+ if(opt) fChamber[Int_t(fIndex[ch])]->Print(opt);
+ else printf("%2d[%2d] ", fIndex[ch], fIndex[ch]>=0 ? fChamber[Int_t(fIndex[ch])]->GetNClusters() : 0);
+ }
+ if(!opt) printf("\n");
+ }
- Int_t time_bin = plane * (Int_t(AliTRDgeometry::DrThick()
- /fTimeBinSize) + 1) + local_tb;
- return time_bin;
}
-
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